High Seas Forecast
Issued by NWS

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842
FZPN03 KNHC 222147
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED NOV 22 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

SECURITE

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1800 UTC WED NOV 22.
24 HOUR FORECAST VALID 1800 UTC THU NOV 23.
48 HOUR FORECAST VALID 1800 UTC FRI NOV 24.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

...GALE WARNING...
.GULF OF TEHUANTEPEC N WINDS INCREASING 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.06 HOUR FORECAST N OF 14.5N BETWEEN 94W AND 95.5W...INCLUDING
THE GULF OF TEHUANTEPEC...N WINDS 30 TO 40 KT. SEAS BUILDING 8
TO 10 FT. ELSEWHERE WITHIN 45 NM OF LINE FROM 16N95W TO
14.5N95W N WINDS 20 TO 30 KT. SEAS TO 8 FT.
.24 HOUR FORECAST WITHIN 60 NM OF LINE FROM 16N95W TO 14N95W
12N96W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 45
KT. SEAS 12 TO 16 FT. ELSEWHERE WITHIN 90 NM OF LINE FROM 16N95W
14N95.5W TO 11N98W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO
14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35
KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 75 NM OF LINE FROM 16N95W
TO 14N95.5W TO 12N97W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 10
FT. REMAINDER OF AREA FROM 08N TO 13N BETWEEN 94W AND 102W WINDS
20 KT OR LESS. SEAS TO 9 FT IN MIXED NE AND SW SWELL.

.SYNOPSIS AND FORECAST.

.COLD FRONT ENTERING FAR NW CORNER OF AREA. W OF LINE FROM
30N132W TO 25N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW
SWELL...HIGHEST SEAS FAR NW PORTION.
.24 HOUR FORECAST STATIONARY FRONT FROM 30N137W TO 27N140W. W OF
LINE FROM 30N129W TO 20N140W WINDS 20 KT OR LESS. SEAS 8 TO 14
FT IN NW SWELL...HIGHEST FAR NW PORTION.
.48 HOUR FORECAST WEAKENING STATIONARY FRONT 30N137W TO 24N140W.
 W OF LINE FROM 30N122W TO 18N130W TO 10N140W WINDS 20 KT OR
LESS. SEAS 8 TO 11 FT NW SWELL...HIGHEST NEAR 23N138W.

.42 HOUR FORECAST WITHIN 30 NM OF LINE FROM 11N85.5W TO
10N87.5W...INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 2130 UTC WED NOV 22...

.SCATTERED MODERATE ISOLATED STRONG WITHIN 150 NM OF MEXICAN
COAST BETWEEN 98W AND 102.5W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM LOW PRES NEAR 11N76W 1010 MB TO 08N85W TO
10N95W TO 10N107W. ITCZ FROM 10N107W TO 08N125W TO 09N130W TO
10N140W. SCATTERED MODERATE N OF 07N E OF 83W. SCATTERED
MODERATE ISOLATED STRONG WITHIN 60 NM OF LINE FROM 21N135W TO
18N136W.

$$
.FORECASTER COBB. NATIONAL HURRICANE CENTER.



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